package com.briup.day15;

import java.io.IOException;
import java.io.InputStream;

/**
 * @author 谭梦寻
 * @version 1.1
 */
public class TestSystemIn {
    public static void main(String[] args) throws IOException {
//        1 声明流
        InputStream in = System.in;
//        2 读数据
        int data = in.read();
        System.out.println(data);
//        3 关闭流
        in.close();
    }
}
